Well, there's inventory of various essential goods in a variety of places, and all the essential services you note, as well as power, plumbing, etc.
Instead of going to a restaurant, I make a sandwich, instead of buying a new shirt, etc. GDP has indeed dropped, and some people have no cash flow (fixable), but I'm not seeing physical (excluding the abstraction of the banking system) reasons why this can't be sustained for months if necessary.
Instead of going to a restaurant, I make a sandwich, instead of buying a new shirt, etc. GDP has indeed dropped, and some people have no cash flow (fixable), but I'm not seeing physical (excluding the abstraction of the banking system) reasons why this can't be sustained for months if necessary.